Rapeseed (Brassica napus), an important oil seed crop globally, originated initially in the Mediterranean region and currently occupies third position after palm and soybean crops. The complex polyploid genome of the crop species indicates the intricacies of its origin and evolution. However, the crop has been under steady development over the past decades, and the major cultivators are Canada, the EU and China. The crop has high economic significance as it serves as a vegetable oil, technical lubricant, biofuels, and animal feed. The rapeseed oil is considered advantageous for its culinary purposes as it is characterized by a high content of unsaturated fatty acids, promoting human health. The crop promotes sustainability in agriculture by enhancing soil health, facilitating nutrient cycles, acting as a rotation crop to evade disease cycles, aligning with contemporary sustainable agricultural practices. The rapeseed crop employed for crop rotations in several counties significantly contributes to enhanced soil health and improved rural economy. The chapter pools information regarding the origin, importance, key consideration points for future improvements, and breeding approaches in rapeseed cultivation. The traditional breeding approaches for enhancing resistance, yield, and quality in rapeseed are ineffective due to genome complexity and open-pollinated varieties. Thus, a shift in the attention of breeders in the generation of F1 hybrids and using male sterility has led to the development of superior varieties. The use of contemporary breeding approaches and molecular methods combined with predictive modelling of new varieties according to geographic and changing climatic conditions will aid in leveraging the crop benefits for future generations.